After performing recent updates to my Ubuntu 8.04 Hardy Heron desktop i’ve noticed my system started to experience random freezing. At first i thought it was from using Firefox 3.0 or just after login in but after some trial and error it appears to be a much more serious problem. This bug has been reported to the Ubuntu bug list and is bug # 228633.
Bug # 228633 causes system hangs, offers no mouse movement, gives no keyboard response, errors or logs. Some think it is due to the use of a wireless card and by disabling the wireless and using a wired connection have been able to work around this problem until the bug is fixed. I still had problems after doing this and it appeared to be USB-related.
For a detailed bug description go here
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